Automatic box-board-beveling machine.



Patented June 25, 1912.

2 SHEETS-SHEET 1.

Witnesses inventor Attorneys L. S. FLETCHER.

AUTOMATIC BOX BOARD BEVELING MACHINE.

APPLICATION FILED JAN. 16, 1911.

1,030,295, Patented June 25, 1912.

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Inventor Wit esses I A4? Attorneys COLUMBIA PLANUGRAPH (20., WAS NNNNNNNNNN c.

LOUIS S. FLETCHER, OF REDLANDS, CALIFORNIA.

AUTOMATIC BOX-BOARD-BEVELIN G MACHINE.

Specification of Letters Patent.

Patented J une 25, 1912.

Application filed January 16, 1911. Serial No. 602,994.

To all whom it may concern Be it known that I, LoUIs S. FLETCHER, a citizen of the United States, residing at Redlands, in the county of San Bernardino and State of California, have invented a new and useful Automatic Box-Board- Beveling Machine, of which the following is a specification.

The device herein disclosed, is a workwo-rking machine, adapted to be employed for beveling the constituent elements of cases in which fruit is shipped.

It is the object'of this invention to provide cutting mechanism of novel and improved form, to provide conveyer mechanism, operatively connected with the cutting machanism, and to provide novel means for housing the material, previous to and after its engagement with the cutting mech anism.

Another object of the invention is to provide novel means for controlling the move- 'ment of the material while it is being operated upon by the cutting mechanism.

vVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of the invention.

In the drawings ;Figure 1 shows the in vention in side elevation; Fig. 2 is atop plan; Fig. 3 is a transverse section on the line 33 of Fig. 1; Fig. 4 is a fragmental side elevation of the cutting mechanism; Fig. 5 is a top plan of the cutting mechanism shown in Fig. 4; Fig. 6 is a fragmental side elevation showing another manner in which the cutting mechanism may be mounted upon its actuating shaft; Fig. 7 is a fragmental elevation showing parts of the driving mechanism; and Fig. 8 is a sectional elevation showing the cutter actuating shaft, and the portion of the structure in which the shaft is immediately mounted.

In carrying out the invention, there is provided as a primary and fundamental element, a frame 1, which may be of any form. Supported by the frame 1 is a table 2, and disposed adjacent the frame 1, at one end thereof, is a base 3.

Supported upon the table 2, adjacent the forward end of the machine, is an upright, box-like casing 4, open at the top. Rising from the base 2, adjacent the rear end of the mechine, is an upright receptacle 5, an inclined chute 6 leading from the table 2 into the receptacle 5.

In practice, the box parts which are to be beveled, are superposed in the casing 4. These box parts are slid, one at a time, out of the casing 4, and advanced along the table 2, against suitable cutting mechanism, the box parts being thence passed upon. the chute 6, to fall into the receptacle 5, there being a removable paddle 7 in the bottom of the receptacle 5, whereby the superposed box elements, in beveled condition, may be removed in a pile from the receptacle 5.

The casing 4, upon its outer side, and adjacent its bottom is open, as denoted by the numeral 100 in Fig. 1. Owing to this fact, a single piece of material may be advanced through the machine, by mechanism to be described hereinafter, when the casing 4 is empty.

Referring particularly to the actuating mechanism, a shaft 8 is held for rotation beneath the table 2, at the rear end of the frame 1, another shaft 9 being adjustably held in the frame 1, beneath the table 2, at the forward end of the structure. These shaft-s 8 and 9 carry'sprocket wheels 9, about which is passed a belt conveyer, the same ordinarily consisting of chains 10, moving in slots 11 in the table 2. The chains 10 are equipped with upstanding projections 12, adapted to receive one box element at a time, and to advance the same out of the casing 4, beneath the wall 14 of the casing (see Fig. 2), the chains 10 advancing the box element against the cutting mechanism, and subsequently depositing the box element upon the chute 6, from which it will pass into the receptacle 5. Chains 10 extend beyond the outer face of the casing 4, beyond the open portion 100 of the casing, and thus, as hereinbefore stated, a single piece of board may be advanced through the casing 4, when the casing 4 is empty.

Upon its rear side, the casing 4 is equipped with an extension 15, provided with spring arms 16, extending longitudinally of the table 2. These spring arms 16 press upon each box element, as it is advanced out of the casing 4, the box element being thus held upon the table 2, so that it may be operated upon properly by the cutting mechanism, to be described hereinafter.

In order that each box element, as it is moved along by the chains 10, may be limited in its movement transversely of the table 2, there is mounted upon the table 2 a fixed guide 17. Adjacent the opposite edge of the table 2, a movable guide 18 is disposed, the guide 18 being adjustably held upon the table 2 by means of a pin and slot connection 19. The movable guide 18 is slidably engaged beneath the extension 15 and advanced toward the fixed guide 17 by an arcuate spring 21, secured to a post 20, fixed to and rising from the table 2. The spring 21, as will be clearly understood, serves to advance the movable guide 18 in the direction of the fixed guide 17, the guides thus coiiperating in maintaining the box element in proper relation to the cutting mechanism, as will be described hereinafter. One wall of the receptacle 5 is extended upon the table 2, as shown at 22, to coperate with the fixed guide 17, in directing the movement of the material, along the table.

It is to be observed that since the movable guide 18 is slidably engaged beneath the extension 15, the material will be thrust against the fixed guide 17, and be held by the extension 15, before the material has passed from beneath the extension 15.

Secured to the shaft 8, is a pinion 23, meshing into a pinion 24, secured upon a shaft 25, journaled for rotation upon the rear end of the frame 1, below the shaft 8. There is a cone pulley 26 upon the shaft 25, and about the cone pulley 26 a belt 27 is passed, the belt 27 being trained about a cone pulley 28, secured to a shaft 29, journaled for rotation upon the frame 1 at the forward end of the machine, and below the shaft 9. The shaft 29 carries also a pulley 30, about which is trained a belt 31, engaged with a pulley 32 upon the armature shaft of a motor 33 which may be supported upon the base 3. The armature shaft of the motor 33 is operatively connected with a belt 34, trained about a pulley 35, secured to an upright cutter shaft 36, held for rotation in boxings 37, formed in the ends of an upright bearing bracket 38, secured to the frame 1, as Figs. 3 and 7 will make clear, In the bearings 37, oil cups 39 are formed, to receive a suitable lubricant for the upright cutter shaft 36. Threaded into an arm 40, formed in the lower portion of the bearing bracket 38, or mounted in any other suit-able manner in the bearing bracket, is a set screw 41, the same bearing against the lower end of the cutter shaft 36. This set screw 41 serves as a means for raising and lowering the cutter shaft, so that the cutters which are carried thereby, may be adjusted vertically with respect to the table 2, as will appear clearly hereinafter.

The upper end of the cutter shaft 36 pro trudes through the table 2, and may be threaded, or otherwise constructed to receive cutters, denoted generally by the numeral 42 in Fig. 4. These cutters 42 consist of a plurality of radially disposed arms 43, the arms 43 of one cutter diverging from the arms 43 of the superposed cutter, as Fig. 4 will render evident. Owing to the fact that the arms 43 of the cutters diverge, when a box element 44 is fed between the arms of the cutters, the box element will be beveled upon opposite sides, as shown at 45. The box element to which the numeral 44 is ap plied, ordinarily forms the partition of a box of the sort in which fruit is shipped.

The cutters 42 are removably assembled with the cutter shaft 36, and one of the cutters may be displaced, leaving but onecutter upon the cutter shaft, as denoted by the numeral 46 in Fig. 6. When a single cutter is thus mounted upon the cutter shaft, the box element 47 will be beveled upon one face only, as shown at 48, the box element 47 ordinarily constituting the cover or lid for the structure.

In order to adjust the tension in the belt 27, a belt tightener is provided, the same consisting of a lever 49, fulcrumed at one end upon the frame 1, the lever carrying, in its intermedhte portion, an idle pulley 50, adapted to bear against the belt 27 there being a suitable segment 51, carried by the frame 1, and adapted to be engaged by the lever 49, whereby the idle pulley 50 may be held against the belt 27.

As indicated in'Fig. 2, the cutters which operate above the table 2, may be housed in, beneath a suitable covering 52.

The operation of the device as above described, is as follows: The box parts are piled upon the table 2, within the casing 4. When the motor 33 is started, the belt 31 will actuate the shaft 29, the shaft 29 through the instrument-ality of the belt 27 actuating the shaft 25, the intermeshing pinions 24 and 23 imparting from the shaft 25, a rotation to the shaft 8, the shaft 8, in its turn, actuating the chains 10, which con stitute the belt conveyer. The upstanding projections 12 upon the conveyer chains 10, will advance one box part at a time, beneath the wall 14 of the casing 4, the box part being held down upon the table 2 by the spring arms 16, the movement of the box part, transversely of the table, being limited by the guides 17 and 18. As the box part is thus advanced by 'the conveyer chains 10, the cutters 43, being actuated by the shaft 36, will trim the edges of the box part, as shown in Figs. 4 and 6. The cutter shaft 36 is driven by the belt 34, trained about the armature shaft of the motor 33, and

about the pulley 35 upon the cutter shaft. In order to elevate and depress the cutter shaft 36, so as to accommodate the box parts of different thicknesses, the set screw 41 may be manipulated, in the manner hereinbefore described. After the box parts have been advanced through the cutters, the box parts Will pass upon the chute 6, and thence into the receptacle 5, from which they may be removed in a pile, by Withdrawing the paddle 7.

Having thus described the invention, what is claimed is In a machine for beveling box shooks, a table; a cutter thereon; a shook receptacle upon the table; a conveyer for advancing a shook out of the receptacle and against the cutter; a rigid extension upon the receptacle adapted to hold down the shook upon the conveyer before the shook engages the cutter and to prevent a binding of the shook against the lower edge of the receptacle by the action of the conveyer; a spring secured to the extension and adapted to hold the shook yieldably upon the table while the shook is being engaged by the cutter; a member slidably held upon the table by the extension; and spring means engaging said member to move the same transversely of the conveyer and to advance the shook against the cutter whilst the shook is being held down upon the table by the first specified spring.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

LOUIS S. FLETCHER. Witnesses H. L. Trrus, C. J. MARTIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). O. 

